Rust-proofing composition and process of making same.



ran sans niwr o ioE.

wAE'rEE E. EIVEIG, or roEEno, onro, Assrenor. or ONE-HALF r0 HARRY s.BERGEN, or

' v TOLEDO, onro.

RUST-PROOFI'NG COMPOSITION AND PROCESS OF MAKING SAME.

1,263,395. No Drawing.

To all whom it may concern:

, Be it known that L'WALTER R. EMIG, a citizen of the United States,residing at Toledo, county of Lucas, and State of Ohio,

have in'vented'certain new and useful Im-' protect the surface of iron,etc., to which itis applied for a very extended period from the actionof the air and other oxidizing mfluences. the following specification Ihave described in detail the preferred ingredients and proportionsthereof and also the preferred manner of compounding the in- .Burgundpitch 1% oz. avoirdupois gredients so as to secure the most satisfactorycomposition for the purpose. It isto be understood, however, that thespecific disclosure is for the purpose of exemplification and that myinvention in its broader aspect is not limited either to the particularingredients, proportions or method of compounding specifically describedbut equivalent materialsmay be used theproportions and. the method ofcompounding varied without departing from the scope of the invention asset forth in the following claims.

-"-The materials which I preferably employ and the preferred proportionsthereof are as follows:

S t r o n commercial phosp oric a ci (1 (which may have a strength ofabout 88%) 1} oz. liquid measure Boiled hina. wood 011 2 oz. liquidmeasure Turpentine 8 oz. liquid measure the boiled China wood oil isadded thereto,

Specification of Letters Patent.

. Patented Apr. a. rare.

Application filed li'uly s, 1916. Serial no. 107,275. I

while the pitch is being constantly stirred ponents have been broughttogether and the liquid has become quiet the turpentine 1s stirred intothe same and the mixture is further agitated. It is then allowed to cooland settle and is ready for use.

I claim:

1. A composition of matter for use as a rust-proof coating comprisingphosphate of iron, pitch and a drying oil.

2. A composition of matter for the pur pose described formed by mixingfiilely divided iron and phosphoric acidand adding thereto pitch and adrying oil.

3. A composltlon of matter for the purpose described comprisingphosphate ofiron,

Burgundy pitch and a drying oil. .75-

4. A compositionof matter for thepurpose described comprising phosphateof iron, pitch and China wood oil.

. '5. A composition of matter for the purpose described'comprisingphosphate of iron,

Burgundy pitch and boiled China wood oil.

6. A composition of matter for the purpose described comprising thefollowing ingredients in the proportions named, gray iron filings 1}ounce avoirdupois, strong commercial phosphoric acid-i,- ounce l1qu1dmeasure, Burgundy pitch 1% ounces avoirdupois, China wood oil two ouncesliquid measure and turpentine -8 ounces liquid measure. 7. A; process offorming a rust-proofing 9o composition which consists in forming a pasteof finely divided iron and phosphoric acid, melting pitch and a dryingoil and adding thereto the product of the iron and phosphoric acid.

8. A method of forming rust proofing composition which consists inmelting pitch and adding thereto an oil raisin the tem:

perature of the mixture to the bolling'point I I and adding phosphate ofiron The batch is stirred 55 y 9.. A method 0f making a rust-proofingdivided iron and phosphoric acid and stircomposition Which consists informing a ring the mixture until efi'ervescence ceases. mixture offinely divided iron and phosphoric acid, melting pitch, adding boiledChina WALTER R. EMIG. 5 wood oil thereto, raising the temperature ofWitnesses:

the mixture of pitch and oil to the boiling E. M. BERGEN,

point, adding thereto the mixture of finely R. GELOW.

